module.exports = {
  port: process.env.PORT || 3000,
  db: {
    host: process.env.DB_HOST || 'localhost',
    user: process.env.DB_USER || 'root',
    password: process.env.DB_PASSWORD || '123456',
    database: process.env.DB_NAME || 'merged_system'
  },
  email: {
    service: process.env.EMAIL_SERVICE || 'qq',
    user: process.env.EMAIL_USER || 'your_email@qq.com',
    pass: process.env.EMAIL_PASS || 'your_email_password'
  },
  jwtSecret: process.env.JWT_SECRET || 'your_jwt_secret_key'
};
